Initial wheel build and publishing infrastructure

.github/workflows/build-wheels.yml

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+name: Build Python Wheels
+
+on:
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash --noprofile --norc -euo pipefail {0}
+
+jobs:
+  build-wheels:
+    name: Build wheel (CUDA ${{ matrix.cuda }}, Python ${{ matrix.python }})
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        cuda: ['12', '13']
+        python: ['3.10', '3.11', '3.12', '3.13']
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build wheel
+        run: |
+          bash ci/build_pynvbench_wheel.sh -py-version ${{ matrix.python }} -cuda-version ${{ matrix.cuda }}
+
+      - name: Upload wheel artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: wheel-pynvbench-cu${{ matrix.cuda }}-py${{ matrix.python }}
+          path: wheelhouse/*.whl
+          retention-days: 7
+          if-no-files-found: error
+
+  verify-wheels:
+    name: Verify all wheels built successfully
+    if: ${{ always() }}
+    needs: build-wheels
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check build results
+        run: |
+          if [[ "${{ needs.build-wheels.result }}" != "success" ]]; then
+            echo "Wheel builds failed!"
+            exit 1
+          fi
+          echo "All wheels built successfully!"
+

.github/workflows/publish-wheels.yml

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+name: Publish Wheels to PyPI
+
+on:
+  workflow_dispatch:
+    inputs:
+      run-id:
+        description: "The GitHub Actions run ID that generated validated artifacts"
+        required: true
+        type: string
+      wheel-dst:
+        description: "Which wheel index to publish to?"
+        required: true
+        type: choice
+        options:
+          - testpypi
+          - pypi
+
+defaults:
+  run:
+    shell: bash --noprofile --norc -xeuo pipefail {0}
+
+jobs:
+  publish-wheels:
+    name: Publish wheels to ${{ inputs.wheel-dst }}
+    runs-on: ubuntu-latest
+    environment:
+      name: ${{ inputs.wheel-dst }}
+      url: https://${{ (inputs.wheel-dst == 'testpypi' && 'test.') || '' }}pypi.org/p/pynvbench/
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - name: Download all wheel artifacts
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RUN_ID: ${{ inputs.run-id }}
+        run: |
+          gh run download ${RUN_ID} -D dl -R ${{ github.repository }} -p 'wheel-*'
+          mkdir -p dist
+          find dl -name '*.whl' -exec mv {} dist/ \;
+          rm -rf dl
+          ls -lh dist/
+
+      - name: Publish package distributions to PyPI
+        if: ${{ inputs.wheel-dst == 'pypi' }}
+        uses: pypa/gh-action-pypi-publish@release/v1
+
+      - name: Publish package distributions to TestPyPI
+        if: ${{ inputs.wheel-dst == 'testpypi' }}
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
+